Fecchio, RY, de Sousa, J, Oliveira-Silva, L, da Silva Junior, N, de Abreu, A, da Silva, G, Drager, L, Low, DA and Forjaz, C (2023) Effects of dynamic, isometric and combined resistance training on blood pressure and its mechanisms in hypertensive men. Hypertension Research. ISSN 0916-9636

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Abstract

Although dynamic resistance training (DRT) and isometric handgrip training (IHT) may decrease blood pressure (BP) in hypertensives, the effects of these types of training have not been directly compared, and a possible additive effect of combining IHT to DRT (combined resistance training - CRT), has not been investigated. Thus, this study compared the effects of DRT, IHT and CRT on BP, systemic hemodynamics, vascular function, and cardiovascular autonomic modulation. Sixty-two middle-aged men with treated hypertension were randomly allocated among four groups: DRT (8 exercises, 50% of 1RM, 3 sets until moderate fatigue), IHT (30% of MCV, 4 sets of 2 min), CRT (DRT + IHT) and control (CON – stretching). In all groups, the interventions were administered 3 times/week for 10 weeks. Pre- and post-interventions, BP, systemic hemodynamics, vascular function and cardiovascular autonomic modulation were assessed. ANOVAs and ANCOVAs adjusted for pre-intervention values were employed for analysis. Systolic BP
decreased similarly with DRT and CRT (125±11 vs. 119±12 and 128±12 vs 119±12mmHg, respectively; all P<0.05), while peak blood flow during reactive hyperaemia (a marker of microvascular function) increased similarly in these groups (774±377 vs.1067±461 and 654±321 vs. 954±464 mL/min, respectively, all P<0.05). DRT and CRT did not change systemic hemodynamics, flow-mediated dilation, and cardiovascular autonomic modulation. Additionally, none of the variables were changed by IHT. In conclusion, DRT, but not IHT, improved BP and microvascular function in treated hypertensive men. CRT did not have any additional effect in comparison with DRT alone.

Item Type:	Article
Additional Information:	This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: https://doi.org/10.1038/s41440-023-01202-4
Uncontrolled Keywords:	1102 Cardiorespiratory Medicine and Haematology; 1103 Clinical Sciences; Cardiovascular System & Hematology
Subjects:	R Medicine > RC Internal medicine > RC1200 Sports Medicine G Geography. Anthropology. Recreation > GV Recreation Leisure > GV561 Sports > GV711 Coaching G Geography. Anthropology. Recreation > GV Recreation Leisure > GV561 Sports
Divisions:	Sport & Exercise Sciences
Publisher:	Springer Nature
SWORD Depositor:	A Symplectic
Date Deposited:	24 Jan 2023 15:37
Last Modified:	23 Jan 2024 13:45
DOI or ID number:	10.1038/s41440-023-01202-4
URI:	https://researchonline.ljmu.ac.uk/id/eprint/18703

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